8.直接写出得数.
500×80= | 18×200= | 720÷80= | 101×40= | 12÷4×3= |
457+213= | 623-197= | 200÷5= | 540÷9= | 10×4÷10×4= |
5.走进速算园,口算我最棒!
7.2+2.8= | 15.3-2.4= | 8.7+13.2= |
6.9-3.4= | 500×20= | 30×60= |
80×50= | 60÷5= | 21×40= |
4.6角8分用小数表示( )元.
0 159679 159687 159693 159697 159703 159705 159709 159715 159717 159723 159729 159733 159735 159739 159745 159747 159753 159757 159759 159763 159765 159769 159771 159773 159774 159775 159777 159778 159779 159781 159783 159787 159789 159793 159795 159799 159805 159807 159813 159817 159819 159823 159829 159835 159837 159843 159847 159849 159855 159859 159865 159873 199269
A. | 6.80 | B. | 0.68 | C. | 6.8 |